To add or remove images on a created event page, log in as event organiser and visit the list of event pages under Events > Organiser > Active. If the event page is in draft, visit that section.
Click on the vertical dots ⋮ icon next to the relevant event page, then on Edit event.
To add a logo, click on Edit event logo, browse and upload an image, then click on Save changes.
To add a cover image, click on Edit event cover image, browse and upload an image, then click on Save changes.
To add gallery images, click on Upload to gallery, browse and upload multiple images, then click on Save changes.
Click on View public page (top) to view the changes as the public would see it.
To remove a logo or cover image, simply upload a new image to replace it.
To remove a gallery image, click on on the bin icon on the image.